Micromechanical Modeling Of Random Or
Imperfect Composites
Author(s)
M. ˇSejnoha & J. Zeman
Abstract
A class of heterogeneous material systems often regarded as random or imperfect
composites is addressed in this paper. The literature now offers a number of contributions
that open the way to the analysis of large material systems with complex
microstructures while taking advantage of popular micromechanics based
approaches building on periodicity and first order homogenization techniques.
Until recently the attention has been mostly limited to rather classical material
systems such as unidirectional fibrous composites and textiles with emphasis on
various types of imperfections developed during fabrication process on both microscale
(level of fiber bundles) and meso-scale (level of textile geometry). From the
basic mechanics point of view, however, it appears logical to exploit the essential
principles of the proposed procedures in bridging the gap between mechanical and
civil engineering applications. In this regard, historical masonry structures classi-
fied as systems composed of more than one material component serve as a typical
example of civil engineering applications, which may benefit from standard first
order homogenization schemes extended to account for possibly irregular arrangement
of individual stone blocks. In this contribution, both groups of material systems
will be treated on the same footing demonstrating the applicability of basic
homogenization techniques as well as similarities between various heterogeneous
material systems when referred to as random or imperfect.
Keywords: random and imperfect composites, textiles, masonry, periodic unit cell,
two-point probability function.
Keywords
random and imperfect composites, textiles, masonry, periodic unit cell,
two-point probability function.
Related Book
Other papers in this volume
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